Spring Equinox – Vernal Equinox
The spring (vernal) equinox in the Northern Hemisphere is the autumnal (fall) equinox in the Southern Hemisphere and vice versa.
On the two equinoxes every year the sun shines directly on the equator and the length of day and night is nearly equal – but not quite.
Northern Hemisphere spring equinox
(USA, Central America, Canada, Europe, Asia, northern Africa)
Southern Hemisphere spring equinoxSeptember equinox 2015: September 23, at 08:20 UTC.
(Australia, New Zealand, South America, Southern Africa)
In the USA and some other areas in the northern hemisphere, the vernal equinox marks the first day of spring. However, the official date for the first day of spring varies depending on the country's climate.
Solstices & equinoxes
- Spring / Vernal equinox
- Summer solstice
- Autumnal / Fall equinox
- Winter solstice
- Equal day & night?
- Seasons: Astronomical vs Meterological